diff options
Diffstat (limited to 'ipn/localapi/localapi.go')
| -rw-r--r-- | ipn/localapi/localapi.go | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/ipn/localapi/localapi.go b/ipn/localapi/localapi.go index ec9d434e7..bf8cba2bc 100644 --- a/ipn/localapi/localapi.go +++ b/ipn/localapi/localapi.go @@ -92,6 +92,7 @@ var handler = map[string]localAPIHandler{ "debug-capture": (*Handler).serveDebugCapture, "debug-derp-region": (*Handler).serveDebugDERPRegion, "debug-dial-types": (*Handler).serveDebugDialTypes, + "debug-envknob": (*Handler).serveDebugEnvKnob, "debug-log": (*Handler).serveDebugLog, "debug-packet-filter-matches": (*Handler).serveDebugPacketFilterMatches, "debug-packet-filter-rules": (*Handler).serveDebugPacketFilterRules, @@ -584,6 +585,30 @@ func (h *Handler) serveUserMetrics(w http.ResponseWriter, r *http.Request) { usermetric.Handler(w, r) } +// serveDebugEnvKnob allows the remote LocalAPI user to set the value of an envknob. +func (h *Handler) serveDebugEnvKnob(w http.ResponseWriter, r *http.Request) { + if !h.PermitWrite { + http.Error(w, "debug-envknob access denied", http.StatusForbidden) + return + } + if r.Method != "POST" { + http.Error(w, "POST required", http.StatusMethodNotAllowed) + return + } + if k := r.FormValue("key"); k != "" { + if kv := r.FormValue("value"); kv != "" { + envknob.Setenv(k, kv) + io.WriteString(w, fmt.Sprintf("set %q to %q\n", k, kv)) + } else { + http.Error(w, fmt.Sprintf("missing envknob value for envknob key %q", k), http.StatusBadRequest) + return + } + } else { + http.Error(w, "must provide an envknob key", http.StatusBadRequest) + return + } +} + func (h *Handler) serveDebug(w http.ResponseWriter, r *http.Request) { if !h.PermitWrite { http.Error(w, "debug access denied", http.StatusForbidden) |